*{
    /*margin: 0;*/
    /*padding: 0;*/
}
body {
  max-width: 768px;
  margin: 0 auto;
}
h1, h2 {
  font-weight: normal;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
.start {
  width: 100%;
  margin: 0 auto;
}
.main{
    width: 768px;
    height: 100%;
    border: 1px red solid;
    margin: 0 auto;
}